Granted Patent
Utility
US 5,456,847 · App. 08/171,887
Low foaming, nonsilicone aqueous textile auxiliary compositions and the preparation and use thereof
Inventors:
Christian Guth, Albert Stehlin
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Dec 22, 1993
Inventors
Christian Guth
Albert Stehlin
Assignee (at issue)
Ciba-Geigy
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.